NPPES file of Aug 9, 2026

Peter C. Kohler, M.D.

Ophthalmology Physician · Waterville, ME

Peter C. Kohler, M.D. is an ophthalmology physician with a practice address in Waterville, Maine, and NPI 1417954066, issued on Jun 28, 2005. Check the license (Maine 013307, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1417954066
Name
Peter C. Kohler
Credential
M.D.
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
013307 ME
Self-reported in NPPES; status is on the state search
Practice location
325A Kennedy Memorial Dr, Waterville, ME 04901
Phone
(207) 873-2731
Enumerated
Jun 28, 2005
Record last updated
Jan 28, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(207) 873-1106
Medicaid ID
290130099 ME
Medicare enrollment
Enrolled (PECOS I20050628001121); accepts Medicare assignment
Medical or professional school
University Of Vermont College Of Medicine, 1988
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 325A Kennedy Memorial Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Maureen Dole, CRNACertified Registered Nurse Anesthetist1376521658
  2. Nour Maya Haddad, M.DOphthalmology Physician1689947731
  3. Zachary Klett, MDOphthalmic Plastic and Reconstructive Surgery Physician1851374938
  4. James Putnam, M.D.Ophthalmology Physician1235131285
  5. Deborah Witkin, MDOphthalmology Physician1457732299
  6. Steve Witkin, M.D.Ophthalmology Physician1790772887

Verify Peter C. Kohler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
    Search for license 013307
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Maine license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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1% more Medicare Part D claims than the average ophthalmology physician in 2024

1,530 Medicare Part D claims for 670 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 63% of claims.

  1. Peter Kohler1,530
  2. Specialty average1,518

Most prescribed

  1. Prednisolone Acetate652 claims
  2. Latanoprost189 claims
  3. Timolol Maleate186 claims
  4. Lumigan82 claims
  5. Brimonidine Tartrate81 claims
  6. Rhopressa47 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score100.0
  2. Costout of 100 · 30%92.3
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $147.12

7 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Peter Kohler$147.12
  2. Specialty average$4,535.02

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Maine Eye Care AssociatesWaterville, ME

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Peter C. Kohler among 98 ophthalmology physician records in Maine

Peter C. Kohler, M.D. is one of 98 ophthalmology physician records with a practice address in Maine. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 76% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileYes · 51% of these records are
  • Graduated1988 · median 2001 among the 50 with a school on file
  • Record last updated2021 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Ophthalmology Physician providers in Maine

There are 98 ophthalmology physician records in Maine.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Marc Daniels, M.D.Waterville, ME 049011578560918
  2. Nour Maya Haddad, M.DWaterville, ME 049011689947731
  3. Clement Lavin, MDWaterville, ME 049011457346397
  4. James Putnam, M.D.Waterville, ME 049011235131285
  5. Steve Witkin, M.D.Waterville, ME 049011790772887
  6. Deborah Witkin, MDWaterville, ME 049011457732299
  7. Lyndon Morgan, MDBelfast, ME 049151518901081
  8. Erin Lichtenstein, MDFairfield, ME 049371023290145

Common questions

What is Peter C. Kohler, M.D.'s NPI number?

Peter C. Kohler, M.D.'s National Provider Identifier (NPI) is 1417954066, issued on Jun 28, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Peter C. Kohler, M.D. located?

The NPPES record lists a practice address at 325A Kennedy Memorial Dr, Waterville, ME, 04901. Phone: (207) 873-2731. Providers update this record themselves, so call before visiting.

How can I verify Peter C. Kohler, M.D.'s license?

NPPES lists Maine license number 013307, as entered by the provider. Search the Maine Board of Licensure in Medicine at https://www.maine.gov/md/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Peter C. Kohler, M.D. prescribe under Medicare Part D?

In 2024, Peter C. Kohler, M.D. had 1,530 Medicare Part D claims for 670 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

What is Peter C. Kohler, M.D.'s MIPS final score?

The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.